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Finding the Fourth Proportional to 156,573.90, 216,082.67 and 88,590.87

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Solution

The fourth proportional to 156,573.90, 216,082.67 and 88,590.87 is: 122,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,573.90 : 216,082.67 = 88,590.87 : x
  2. Step 2: Convert to fraction form
    156,573.90/216,082.67 = 88,590.87/x
  3. Step 3: Cross multiply
    156,573.90x = 216,082.67 × 88,590.87
  4. Step 4: Simplify right side
    156,573.90x = 19,142,951,284.27
  5. Step 5: Solve for x
    x = 19,142,951,284.27/156,573.90
  6. Step 6: Final answer
    x = 122,261.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.